JPH0119713Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a holding member for locking the ends of separators and maintaining a constant distance between molds.

The holding member of the present invention is placed inside the formwork,
It is fixed by bolts etc. that pass through the formwork from the outside of the formwork, and the separator is made of iron rods with the ends bent at right angles. have In particular, since the elongated hole is provided so that the separator can be engaged with the vertical portion over a long section, the separator can be securely locked without deforming the separator. and,
According to the present invention, the engagement relationship between the separator and the holding member is reliable, and deformation of the ends of the separator can be prevented, so a vibrator etc. can be used when pouring concrete for walls etc. Even when vibration is applied to the formwork, the engaging portion between the separator and the holding member does not deform, and the formwork can be fixed in the correct position.

By the way, separators used for fixing formwork and maintaining the spacing between formworks are usually provided with screws at both ends, the threaded parts protrude through the formwork, and are attached to the outside of the formwork. It is often locked to a formwork fixing member. In this case, when the separator is used after pouring concrete and removing the formwork after it hardens, the end of the separator will protrude from the surface of the concrete wall, so this protruding part should be broken off. By filling holes in the wall,
I try to finish the walls with a smooth surface.

In addition, separators with right-angled bent portions at both ends are shaped like so-called eye bolts in which the heads of bolts, etc. that pass through the formwork plate are formed into a flat plate with a hole in the center. Some devices have bent portions of the separator locked in the holes.

In this case, since the bolt head is a thin plate and the tension is small, the separator end often comes off easily due to shock or vibration, and the separator end may break. It was often impossible to maintain the spacing between the concrete formworks to a specified wall thickness, as the bends were stretched and could no longer maintain a right-angled shape.

When using a separator with bent portions formed at right angles at both ends, the present invention provides locking holes that can engage the bent portions of the separator over as long a section as possible, and also provides a locking hole that allows the bent portions of the separator to be engaged over as long a section as possible. By fixing a holding member provided with a fixing member to the inside of the formwork, and fixing the above-mentioned separator between the holding members,
It is designed to maintain the form spacing, and vibrations and impacts during concrete pouring will prevent the separator from disengaging from the holding member.
Alternatively, inconveniences such as the bent portions of the separator ends being expanded can be completely prevented.

The present invention will be described below with reference to examples.

The holding member 1 of the present invention is composed of a plastic head member 2 and a metal tip member 8 attached to the tip thereof.

The head member 2 includes a truncated conical head 3, a flange 4 with a larger diameter integrally formed on the larger diameter side of the head, and a screw on the outer periphery protruding forward from the center of the flange 4. It consists of a formed protrusion 6, and has an unevenness 7 on the tip surface of the protrusion, and a head 3.
A screw hole 5 is provided in the center of the small diameter side of the screw hole 5. Note that a nut with a female thread may be fitted into the head 3.

The tip member 8 is shaped like a bottomed cylinder with slits 15 formed on both sides thereof to be divided into upper and lower members 11 and 12, and has a circular bottom portion 9.
, a screw hole 10 is provided in the center, and the upper part of the bottom part 9 is
Approximately semicircular upper and lower members 11, 1 connected to the lower part
2 are provided in parallel. Holes 13 and 14 are coaxially formed in the upper and lower members 11 and 12.
The hanging portion 17 of the separator 16 is inserted into the holes 3 and 14 and fixed. In addition, instead of the screw hole 5, a bolt is directly embedded in the head 3,
It may also be formed as an opposite extension of the projection 6.

The protruding portion of the head member 2 is screwed into the hole 10 at the bottom of the tip member 8, and both members 2 and 8 are integrated. Then, as shown in FIG. 1, the holding member 1 is attached to the formwork 19 using the bolts 18, and the holes 13, 1
When the hanging part 17 of the separator 16 is inserted into the separator 4, the uneven surface 7 of the protruding part 6 comes into contact with the side surface of the hanging part 17, and the hanging part 17 is connected to the upper part and the lower part 11, 12 and the protruding part 6. It can be locked in three places.

In the holding member 1 of the present invention, since the part exposed to the concrete wall is made of plastic, its surface will not corrode like metal, and the screw hole remaining in the head part is the same as the hole left after removing the conventional cone. By filling the hole with a plug, the wall can be completely waterproofed.

In the tip member 8 of the holding member of the present invention, since both the upper member 11 and the lower member 12 protruding from the bottom have a substantially semicircular cross section, sufficient strength as a member can be ensured. A thin member can also be used.

The combination of metal and plastic is easy to make, has sufficient strength, and even after being buried in concrete, the flange, upper, and lower members act as anchors, preventing problems such as falling out.

As mentioned above, the holding member of the present invention has a point-contact engagement relationship, whereas the conventional holding member has a point-contact engagement relationship.
Since the holding member and the separator engage in three places and are in contact over a wide area, even if extra tension is applied to the separator during concrete pouring, the bent part will not stretch like in the conventional case. There is no risk of it slipping out or slipping out.

[Brief explanation of drawings]

Fig. 1 is an explanatory view showing how the holding member of the present invention is attached, Fig. 2 is a side view of the head member of the holding member, and Fig. 3 is a side view of the head member of the holding member.
Figures A to C are plan, front and side views of the tip member. Moreover, FIG. 4 is an explanatory diagram showing the construction state. 1... Holding member, 2... Head member, 3... Head,
4...Flange, 5...Screw hole, 6...Protrusion,
7... Uneven part, 8... Tip member, 9... Bottom, 1
0... Screw hole, 11... Upper member, 12... Lower member, 13, 14... Hole, 15... Slit, 16
... Separator, 17 ... Drooping part, 18 ... Bolt, 19 ... Formwork.

Claims (1)

[Scope of utility model registration request] The head member has a truncated conical head, a screw hole is drilled along the center from the small diameter side, a flange with a larger diameter is provided on the large diameter side, and a protruding part is formed from the center of the flange. The tip member is provided with an unevenness at its tip and a hole at the bottom into which the protruding portion is inserted, and the tip member has approximately semicircular long upper and lower members facing each other, and coaxial holes are formed in both members. 1. A spacing member for concrete formwork, characterized in that a hanging part of a separator is provided and vertically penetrates the hole and is locked against a tip of the protruding part.